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Railander
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Joined: Thu Jun 16, 2016 11:30 pm

CRS Q-in-Q + Trunk

Sun Aug 27, 2017 2:57 am

I'm trying to get both VLAN Trunking and Q-in-Q working at the same time but to no avail.
I can do either one just fine, the problem is configuring both at the same time in the same CRS. I cannot find any documentations on how to get it done, the ones for them separately do not help much as the configuration conflicts with each other.

Here's my setup:

Image

Also, the double-tagging needs to be completely transparent, that is, I shouldn't have to explicitly configure which VLANs I want to accept inside VLAN 13, it needs to just accept and transport them all. I can easily achieve this in other equipments (including RouterOS software-based) but I'm having a lot of trouble getting it done on a CRS with hardware-based implementation.
The only way I've managed to let it pass any VLAN through it transparently is if I just add them to the same master-port group and don't add any kind of VLAN configuration at all, which defeats the purpose.

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